[packagekit] multiple word searches

[Richard Hughes]

I want to add multiple word searches to SearchName and SearchDetails,
something like this:

The "wire" format of the search is "one|two" for an OR search, and
"one&two" for an AND search. Obviously, the user wouldn't use |& in the
search box, but the client can make a policy decision about whether
"one two" is mapped to "one|two" or "one&two". I would imagine the
latter is more likely, but this isn't a policy decision the daemon
should make (comments welcome).

So, can backends support this method of searching easily? One thing we
should probably decided is whether SearchDetails ("one&two") matches:

summary: this is one package
details: this is two words of details

i.e. where the AND match should match against fields, unlike:

summary: this is one and two package
details: this has no relevance

So, is this something we want to add? It seems to be a pretty common RFE
when searching bugzillas. Thanks,

Richard